Precalculus: Mathematics for Calculus, 7th Edition

by
Stewart, James; Redlin, Lothar; Watson, Saleem

Published by
Brooks Cole

ISBN 10:
1305071751

ISBN 13:
978-1-30507-175-9

Chapter 1 - Section 1.1 - Real Numbers - 1.1 Exercises: 73

Answer

5

Work Step by Step

The easiest way to solve distance between two points on a straight line is to subtract the smaller value from the the larger one. In this case, subtract $(-2)$ from $3$. $3-(-2)$ is the same as $3+2$ which is $5$.